飞机数字虚拟飞行仿真计算方法及其应用

doi:10.7527/S1000-6893.2024.31543

Abstract

Abstract:

Aircraft digital virtual flight simulation method is a simulation method based on the “human-pilot-environment” mathematical model for complete flight missions. During the preliminary design phase， this method enables initial assessment of aircraft flying qualities and airworthiness compliance， effectively addressing issues that may be difficult to modify if discovered during flight test. Furthermore， this method proves effective for the airworthiness verification of different flight states or civil aircraft developments in the same flight test course， and is increasingly being adopted in civil aircraft airworthiness verification. This paper systematically introduces the aircraft digital virtual flight simulation method， with particular emphasis on flight mission digitization and digital pilot modeling. Application examples are presented in several areas： civil aircraft configuration parameter design and operating condition determination， precise flight performance calculation， civil aircraft airworthiness compliance evaluation， military aircraft flying qualities assessment， and Category Ⅲ nonlinear PIO prediction. This paper provides a practical digital computation methodology for aircraft design， airworthiness verification， and flying qualities assessment.

Key words: digital virtual flight simulation, pilot modeling, airworthiness compliance evaluation, flying qualities assessment, nonlinear PIO prediction

CLC Number:

V212

Lixin WANG, Yilong NIU, Hailiang LIU, Jin WANG, Xianlong WANG, Ting YUE. Aircraft digital virtual flight simulation method and its application[J]. Acta Aeronautica et Astronautica Sinica, 2025, 46(5): 531543.

Figures/Tables 32

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

Table 1

Longitudinal location designs of landing gears

起落架纵向定位	$l m + l n L / %$	$l n l n + l m / %$
D0：基准设计	31.34	11.89~14.04
D1：前起落架前移0.50 m	32.72	11.50~13.55
D2：整体前移0.25 m	31.34	9.82~11.95

Table 1

Fig.7

Table 2

Touch-down state varying with final approach parameters selection

状态	进近参数		接地参数
状态	$V a p p$ / （m∙s^-1）	$γ a p p$ /（°）	$V T D$ / （m∙s^-1）	$V s i n k, T D$ /（ft∙s^-1）	$θ T D$ /（°）
T0	51	-3.0	50.4	3.64	3.50
T1	51-5.15	-3.0	45.2	3.55	7.33
T2	51+5.15	-3.0	55.6	4.47	0.21

Table 2

Fig.8

Table 3

Fig.9

Fig.10

Fig.11

Fig.12

Table 4

Fig.13

Table 5

Fig.14

Fig.15

Fig.16

Fig.17

Table 6

Fig.18

Fig.19

Table 7

Subjective evaluation parameters and recommended value requirements of flight quality for receiver aircraft

飞行品质等级主观评定	HQM	$3.6 ω d - H Q M$
1级	≤3.6	≥0.7
2级	≤6.0
3级	>6.0

Table 7

Fig.20

Fig.21

Fig.22

Fig.23

Fig.24

Fig.25

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起落架横向定位	前主轮间距/m	主轮间距/m
D0：基准设计	11.30	4.762
D3：主轮内移0.15 m	11.30	4.462
D4：主轮内移0.30 m	11.30	4.162

起飞性能指标	试飞	仿真	相对误差/%
离水时间/s	33.1	32.6	1.2
离水速度/（m·s^-1）	49.8	50.7	1.8
到达安全高度（25 m）时间/s	38.4	37.6	2.1
到达安全高度（25 m）速度/（m·s^-1）	55.1	56.7	2.9
起飞场长/m	709	690	2.7
俯仰角峰值/（°）	7.5	7.6	1.3
到达俯仰角峰值时间/s	17.9	18.1	1.2
离水俯仰角/（°）	4.2	3.8	9.5

飞行品质等级	捕获时间/s	超调次数	指定误差范围内的时间比
1级	≤8	≤1	在锥套1/2半径误差带内保持时间≥70%
2级	≤10	≤2	在锥套半径误差带内保持时间≥60%
3级	>10	>2	在锥套半径误差带内保持时间<60%

Aircraft digital virtual flight simulation method and its application

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